Factor completely.x2 + 4xy - 117y2
A. (x - 13y)(x + y)
B. (x - 13y)(x + 9y)
C. (x - y)(x + 9y)
D. (x + 13y)(x - 9y)
Answer: D
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Use the accompanying graph of y = f(x) to sketch the graph of the indicated equation.y = - f(x + 2) + 3
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B.
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Solve the problem.A rocket tracking station has two telescopes A and B placed 2.3 miles apart. The telescopes lock onto a rocket and transmit their angles of elevation to a computer after a rocket launch. What is the distance to the rocket from telescope B at the moment when both tracking stations are directly east of the rocket telescope A reports an angle of elevation of 27° and telescope B reports an angle of elevation of 57°?
A. 1.25 mi B. 3.86 mi C. 4.25 mi D. 2.09 mi
Graph the solution region for the system of inequalities and identify the corners of the region.
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B.
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D.
Provide an appropriate response.Determine if the expression (-7)-5 is positive or negative.
A. Positive B. Negative